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Study on the Association of Vam Fungi from Rhizosphere Soil of Different Fruit Plants in Bangladesh

M. Arifunnahar
Scientific Officer
Plant Pathology Division, BARI, Gazipur.

M.M. Karim
Plant Pathology Division, BARI, Gazipur.

M.N. Islam
Plant Pathology Division, BARI, Gazipur.

R. Momotaz
Plant Pathology Division, BARI, Gazipur.

R. Islam
Senior Scientific Officer
Plant Pathology Division, BARI, Gazipur.

Abstract/ Executive Summary:

Rhizosphere soil of several fruit plants from different regions of Bangladesh were collected for assessing Arbuscular Mycorrhizal (AM) spore population. Six areas of all over Bangladesh were surveyed and twenty three (23) of different fruit plants were collected for the present study. The AM spores were isolated by Wet Sieving and decanting method and 100 gm soil was used in each case. The spore numbers were varied from 831.25 (Sofeda) to 10831.25 (Litchi) at Gazipur, 1250 (Amra and Satkora) to 7287.5 (Litchi) at Rangpur, 831.25 (Kul) to 3956.25 (Litchu) at Tangail, 1037.5 (Applekul and Taikor) to 4581.25 (Batabilebu) at Jaintapur, Sylhet, 831.25 (Labu sample-4) to 3956 (Aam) at Srimangal and 0 (Kul) to 3125 (Litchu) at RARS, Ishurdi. A considerable variation was observed in different fruit plants at different locations in different times. Variation was also observed in same plant at different locations.

Keywords: Fungi, Rhizosphere, soil,

Location: Horticulture Research Centre (HRC), Bangladesh Agricultural Research Institute (BARI), Gazipur

Start Date:

End Date:

Program Area: Crop-Soil-Water Management

Non-commodity: Impact

Objectives:

To know the status of AM spores associated with different fruit crops at different location in Bangladesh.

Methodology:

Selection of area - Six areas of all over Bangladesh were surveyed to collect the samples. The areas were Horticulture Research Centre (HRC), Bangladesh Agricultural Research Institute (BARI), Gazipur; Regional Agricultural Research Station (RARS), Rangpur; Along, Tangail; Citrus Research Centre, Jaintapur, Sylhet; Farmers field, Srimangal and Regional Agricultural Research Station (RARS), Ishurdi, Pabna. Selection of plant - Twenty three (23) different types of fruit plants were selected for the present study which was collected from different locations with different period of time. Collection of soil samples - 100 gm of soil sample were collected from the vicinity of the root region of each of the plant species and collected in polythene bags, labeled then refrigerated at 4⁰C for further use. Collection of AMF spores from soil samples - Wet sieving and decanting method was followed for the isolation of spores for which 100 gm of soil was homogenized with 1-2 liters of water mixing in a bucket. The bucket was left for an hour and when the soil particles settled down the top water was sieved through a sieving set having pore size marked as BS-60, BS-80, BS-100, BS-150, BS-170 and BS-200 piled one above another. The size of the pores were fine enough to remove the larger particles of organic matter, but coarse enough to allow the desired spores to pass through. From each tier the spores was collected with a fine brush and suspended in sterile water on a petriplate, the heavier particles were allowed to settle for a few seconds and the excess water decanted through the sieve and spores were collected with fine brush. With the help of a microscope (4X) parasitized spores, plant debris etc. were separated. Spore count - AMF spores were isolated from 100 gm of soil by wet sieving and decanting method (Gerdemann and Nicolson, 1963). The collected spores were spread on filter paper placed in a petriplate and counted under microscope and expressed under 100 gm of dry soil.

Source of Information: Int. J. Expt. Agric. 7(3):9-13(November 2017)

Article Link (Online Journal):

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

It is concluded from this study that Spore density varied from plant to plant, plant species to species, season to season and also affected by host plant growth stages (vegetative-fruiting). Little work has been done regarding the distribution, diversity and association of Vesicular Arbusculr Mycorrhiza with fruit plants in Bangladesh. This association is important for exchanging some immobile nutrient with different fruit plants. It helps to increase plant growth and biomass and also reduce soil borne diseases. The association has positive effect with host plants by sharing the elements. So a vast research on this filed is necessary for a better tomorrow.

Knowledge Management: Journal